Folding chair



Feb. 13, 1951 THAL 2,541,131

FOLDING CHAIR Filed May 5, 1948 3 Sheets-Sheet l lNVE/VTOR BERNAR D THALBY M A R/VEY Feb. 13, 1951 THAL 2,541,131

FOLDING CHAIR Filed May 5, 1948 3 Sheets-Sheet 2 56 BERNARD THALATTORNEY B. THAL FOLDING CHAIR Feb. 13, 1951 5 Sheets-Sheet 3 Filed May5, 1948 /Nl E/\/7 C7Q BERNARD THAL BY Maw! ATTORNEY Patented Feb. 13,1951 FOLDING CHAIR Bernard Thal, Allston, Massl, assighorto BridgeTables & Novelties, Ina, Lowell; Mass,a corporation of MassachusettsApplication May 1948, Serial N0. 25,270

7 Claims. (Cl. 155-148) The present invention, though having also otherfields of usefulness, relates more particularly to folding chairs.

An object of the present invention is to provide a new and improvedfolding chair that shall be more rugged in construction and sturdy thanfolding chairs heretofore in use.

Another object is to improve upon the connections between the front legsand the mechanisms for simultaneously actuating the back and rear kegsof folding chairs.

Another object is to provide a new and ion-- proved mechanism forlocking two relatively mov able members against movement.

Other and further objects will be explained hereinafter and will be moreparticularly pointed. out in. the appended claims.

The invention will now be more fully described in connection with theaccompanying drawings, in which Fig. l is an elevation of a chairembodying the invention. in preferred form, shown in fully open orextended or unfolded position; Fig. 2 is a similar view, showing thechair partly collapsed or closed; Fig. 3 is another similar View;showing the chair fully folded, collapsed or closed; Fig. 4 is a viewsimilar to Fig. 2, upon a larger scale, but in vertical section upon theline 'l-l of Fig. 10, looking. in the direction of the arrows and withparts broken away, for clearness; Figs. 5 and 6 are fragmentary viewssimilar to Fig. 4,. but with the parts in relatively differentpositions, and upon a still larger scale; Fig.7 is a view similar toFig. i, but with the parts in still further different relativepositions; Fig. 8 is a View similar to Fig. 6, showing further parts,upon a still larger scale and with the parts in the relative difierentpositions shown in Fig. 7; Fig 9 is a diagram explanatory of theoperation of the parts when occupying the positions illustrated in 8;Fig. 10 is a fragmentary underside plan, upon a larger scale still;Fig.3. is a similarly enlarged. perspective, partly in section upon theline llll of Fig. '2, looking the direction of the arrows; Fig. 12 is anunderside perspective of the metal parts in the neighborhood of thehinge for pivoting one of the front legs; Fig. 13- is a perspective,upon. a larger scale, of the meshanism shown in Fig. 8, showing alsoadditional parts; and Fig. la is a section taken upon the line i l -i 4-of '2, looking upward, in the direction of the arrows, the scale beingthe same in Fig. 1

The foiding chair of the present invention is of the type in which aback l pivoted at the rear of a horizontal disposed seat member as l e 5to fold toward and away from the upper side of -the seat member 5, andrear less 2 and front legs 3 are respectively pivoted at the rear andthe front of the seat member 5 respectively to fold as units toward andaway from the under side of the seat member. In chairs of this type, theback member I and the rear legs 2 fold for ward and the front legs 3fold simultaneously rearward to collapse or close the chair, and theback member I and the rear" legs 2 fold rearward and the front legs 3fold simultaneously forward to open the chair. The back member I may beconstituted of the customary two wood side bars rigidly connectedtogether to fold as a unit by wood cross bars, not shown. The two rearlegs 2,- if also of wood may be similarly connected to gether rigidly bythe customary wood cross bars, not shown, so as similarly to fold as aunit, and: the same for the wood front legs 3.

As illustrated more particularly in Fig. 10, the seat member 5 maycomprise a three-sided seatsupporting frame having wood side bars, railsor cleats 4, and a wood front bar, rail or clcat it, the seat-supportingframe being open at the rear.

-. The bars 4 and 13 may be secured together in any desired manner, asby means of glue, nails, screws and the like. The seat member 5 issecured in place in rabbeted or L-shaped grooves 9' provided in the siderails or bars 4 and the front rail or bar l3 of the seat-supportingframe by screws H and 12. The seat member 5 is of substantially.

trapezoidal shape, as the front bar 53 is wider than the open space atthe rear of the three-sided seat frame. The side bars or cleats 4 arethere-'- fore inclined toward each other from the front toward the rearalong the non-parallel sides of the trapezoid, As the legs 2 and 3 arepositioned at the corners of this eat frame, the front legs 3 aretherefore spaced farther apart than the rear legs 2, thus enabling therear legs 2 to fold compactly between the front legs 3.

The long-stem or body portions of horizontally dis-posed rear T-shapedmetal plates 42 are each provided with a. pair of outwardly projectingshorter-than the front arms 54 in order that a b isposed in verticalplanes at right angles tothe parallel sides of the trapezoid.

The back member i is shown pivoted at M, about an axis substantiallyparallel to the parallel sides of the trapezoid, to the upper arms ofthe Ts at the rear of and above the upper side of the seat member 5. Therear legs 2 are shown pivoted 43, about an axis substantially parallelto the parallel sides of the trapezoid, to the lower arms of the Ts atthe rear of and below the under side of the seat member. The pivots iiand 33 are shown as rivets mounted in bushings 44.

The front legs are also pivoted about an axis substantially parallel tothe parallel sides of the trapezoid. This pivoting is effected throughthe medium of front-leg metal hinge plates 58 that may be secured in anydesired manner, as by means of rivets 21, to the inner faces of theupper. ends of the front legs, opposite to the rear legs 2. The upperends of the plates 58 are shown provided with rolled-over cylinders 59through which extend hinge pintles 28. Though the cylinders 59 of eachplate 58 are shown divided into two parts, axially alined substantiallyparallel to the parallel sides of the trapezoid, this is for convenienceonly. U-shaped metal hinge plates 22, provided with downward projectingterminal arms, are secured by rivets 2| to the under face of the seatmember, at the corner junctions of the side bars 4; and the front barI3, above the front legs 3. l'he pintles 28 extend not only through thecylinders 55, but also through the downward projecting terminal arms ofthe hinge plates 22. The metal plates 22 and 58 and the pintles 28 thusprovide hinges by means of which the front legs 3 are pivoted below theseat member. The screws II and I2 for securing the seating portion 5 inplace on the seat member extend respectively through the plates 22 andthe inwardly projecting arms 55 of the T-shaped plates '42.

The rear end of each of two connecting or transfer'link levers 6 isshown pivoted below the pivot and above the pivot 43 to the frontcentral pivot 31 of a toggle comprising two links 29 and 32. The frontends of the two toggle links 29 and 32 are pivoted to the central togglepivot 31. Their rear ends are respectively pivoted at 41 and 51 to theback member i and the rear legs 2. The pivots 4! and 51, like the pivots4i and 43, are shown as rivets mounted in bushings 44. Each centraltoggle pivot3i is mounted to slide in a horizontally disposed rearguideslot l 9 provided in the long-stem or body portion o'f'one of theT-shaped metal plates 42. It is therefore confined to movement parallelto the seat member 5 in the vertical plane of the corresponding metalplate 42. By reason of this guided movement of the toggle pivot 31, anymovement of the back member I must b-ecommunicated, through the togglelinks 29 and 32, to the rear legs 2, and. any movement of the rear legs2 must similarly be communicated to the back member I. The back memberand rear legs 2 are thus connected together by the toggles forsimultaneous movement.

- A front metal slide plate 8 is secured to the inner face of each sidebar 4 by rivets It extending through its front and rear ends it and it.Each metal plate 3 is provided with a guide slot having a front portion1 inclining upward at a steep angle from the front toward the rear ofthe chair, a rear portion 62 inclining similarly upward, but not sosteeply, and an intermediately disposed upturned portion 53 at thejunction between the portions 1 and-62. The upturned portion 63 isdisposed at 'thefend" of the guide-slot portion l near the guide-slotportion 62 in order, as will hereinafter appear, to serve as a lockingrecess. The distance between the bottom wall 64 of the portion '5 ofeach front guide slot and the top of the portion 63 thereof is equaltothe distance between a first pivot pintle 24 and a second pivot pintle23, shown in the form of rivets. The metal plate 8 is shown L-shaped,with the longer arm of the L, between the rear unit I and the offsetbend 3i of the L, disposed in a vertical plane substantially at rightangles to the parallel sides of the trapezoid and to the rail tions 62and 63 of the guide slot, in the said vertical plane along directionsinclined to the horizontal seat member. The front end of a first link i4is pivoted at to a right-angularly-projecting lug ZQdispo'sed at thelower end of each front-leg hinge plate 58. The pivots l5 are shownconstituted of rivets extending through the first link it and the lug29. The rear-end pivot pintles 23 of the first links I i are connectedto the respective pivot pintles 24 by second links 25. The, lugs 26 areparallel to the longer parallel arms of the metal slide plate 8. As eachlink l4 therefore moves in a plane at right angles to the front bar,rail or cleat i3, it is shown straight, without any offset bends betweenthe pivot l5 and the pintle 23. This contributes to the rigidity of thechair. By reason of the offset bends 3i, moreover. a space is providedbetween the longer arm of each metal plate 8 and the inner face of theside bar 4 to which it is secured in which the links it and 25 may bereceived. Though not illustrated, the inner faces of the side bars A maybe gouged out or recessed to receive the rear ends of the respectivelinks M and the links 25 in the collapsed or closed position of thechair.

The front legs 3 may be actuated about their pivoting pintles 28 intoand out of collapsed or closed position, simultaneously with theactuation of the back member I and the rear legs 2, through the mediumof two connecting or transfer link levers 6.

A single connecting or transfer link lever 6 and associated mechanismwouldtheoretically be effective for the purpose of folding and extendingthe rear and the front legs 2 and 3 rearward and forward as a unit andfor simultaneously folding also the back member I, but it is preferredto employ two connecting or transfer link levers 6, one at each side ofthe chair, connected in the same way to the respective front legs 3 andthe corresponding toggle links 29 and 32.

As will hereinafter be more fully explained, th connecting or transferlink levers 6 are adaptedto travel forward and rearward, in response tocorresponding movement imparted to the toggle pivots 37, during the;actuation toward and from each other of the back member I and the rearlegs 2. During the rearward travel of the link lovers 6, the pintles 23and 24 are confined to; slide diagonally upward in the respective saidvertically disposed planes of the longer arms of the L-shaped guideplates 8, along the inclines determined by the portions 62 of therespective front guide slots. During the forward travel of the linklevers 6, the pintles 23 and 24 are confined to slide diagonallydownward along. these inclines. of the link levers 6 the pintles 23enter the por,- tions 10f the respective front guide slots;

- Just before the-'link'leverst reachthe'exti'eme Toward the end of theforward travel 1 limit of their forward movement, in order fully to openthe chair, and to lock the front legs in this fully open position of thechair, the pintles 23 engage the lowermost walls 64 of the portions 1 ofthese respective guide slots L Then, as the link levers 6 are movedslightly further forward, the second links connecting the pivot pins 23and 28 are caused to turn about the now stationary pintles 23 to theleft. At the end of this turning movement of the second links 25, thepintles 24 become snapped into the upturned locking-recess portions 63of the respective front guide slots. Thereupon the links 25 connectingthe pivot pins 23 and 24 become alined with the respective links I4, asshown in Fig. '7, locked in the front inclined portions 7 of therespective front guide slots. This is rendered possible by the fact, asbefore stated, that the distance between the pivot pins 23 and 24 issubstantially equal to the length of the portion 7 of each front guideslot, including the upturned portion 63. Each pivot pin 24 is thusenabled to engage in the corresponding upturned portion 63 when thecorrespond ng pivot pin 23 engages the lower end of the portion l of itsfront guide slot. As each pair of links I4 and 25 therefore serves alsoas a front-leg brace when the chair is open or extended, the front legs3 become locked against collapse in the open unfolded or extendedposition of the chair, as illustrated in Fig. '7. The pivots I5, 23 and24 are shown substantially alined beyond dead center in order to assurethis locking in the open position of the chair.

This naturally serves, as well, to lock the back member I and the rearlegs 2 in the open unfolded or extended position of the chair. Thestability of the chair is increased, however, by providing twoadditional locking mechanisms for locking both the back i and the rearlegs in the open unfolded or extended position of the chair.

One of the two additional mechanisms for locking the back I and the rearlegs 3 in the open unfolded or extended position of the chair comprisesa forwardly disposed locking latch 26 of each toggle link 32. forentering into, in order to become lockingly seated in, a locking latchrecess 48 of a catch 30, pivoted at 53. The catches 3B are normallybiased upward toward locking positions by a hand-release spring plate49. acting through connecting lock extension rods 3'6 that arerespectively pivoted to the catches 30 at 56. The spring plate 69 isheld loosely to the inner face of the front bar I 3 of the seat byheaded pins 5! extending through elongated opening in curved spring endportions 52 provided at the ends of the spring plate 49. This lockingagainst movement of the link 32 naturally results also in similarlylocking the link 29.

a The other of the two additional locking mechanisms for locking theback I and the rear legs 2 in the open unfolded or extended position ofthe chair is obtained by providing each link 32 of each toggle with anintermediately disposed lock latch 40 for seating in a correspondingintermediately disposed latch recess IIof the other link 26 of thetoggle, when the li s 29- and 32 of the toggles become collapsed.

If desired, it is possible to obtain still additional locking effect byhaving the lower portion of the back member I engage solidly against theupper portion of the rear legs 2, as shown. more particularly in Figs. 1and 8, and also to have both engage solidly against the rear faces ofthe side bars or cleats 4.. as is alscgg illustratedz in; r

" willremain ilrmlylocked open-by the I the spring plate 49 yield as thewalls of the elongated openings 50 ride past the headed pins 5i. Theconnecting rods 36 are thereupon moved forward. The spring bias providedby the spring plate 42 upon the catches 30 through the connesting rods36 being thus overcome, the catches 30 are caused to move pivotallyabout their pivots 53 out of the position of Figs. '7, 8, 9 and 13,thereby releasing the latches 26 from the latch recess 48 and unlockingthe first of the two additional locking mechanisms of the chair beforedescribed.

Pressure may thereupon be applied to move the seat member and the backmember I pivotally forward toward each other about the pivots 4 I fromthe open position of Figs. 1, 7, 8 and 10, through the partly collapsedposition of Figs. 2 and 4, toward the closed or collapsed position ofFig. 3. Through the action of the toggle links 25 and 32, this willresult in corresponding movement of the rear legs 2 as a unit abouttheir pivots 43. The consequent horizontal rearward movement of thetoggle pivots 31 in the hori-- zontally disposed guide slots I 9 willunseat thelocking latches 40 from the latch recesses I'l' from theposition of Figs. 7, 8 and 13 toward the position of Fig. 4. It willresult also in. causing the connecting or transfer link levers 6 to moverearward, as above described. The links 25 will become unseated from theposition shown in I Fig. '7 and the pivots 24 will therefore becomeunseated from their upturned portions of the front guide slots. Thepivot pins 23 and 24 will thereupon slide out of the portions I and 63of the front guide slot, from the positions illustrated in Fig. '7, andinto the portion 62, as illustrated in Fig. 4. The catch 30 will at thesame time assume the positions shown in Fig. 6. With continued rearwardmovement of the connecting or transfer link levers 6, the pintles 23 and24 will be caused to travel up the portions 62 of their inclined guideslots, thereby drawing after them the links 25 and I4 from the positionof Figs. I and 7, and through the position of Figs. 2' and 4, thuscausing the front legs 3 to assume once more the collapsed position,illustrated in Fig. 3

To fold open or extend the chair, all! that isnecessary is pivotally tomove the back member I and the seat member away from each other aboutthe pivots 4|. Upon the chair reassuming its fully open position, thefront legs 3 will again become locked in place, the latches 40 willbecome reseated in the latch recesses I 1, and the spring ends 52 of thespring plate 48 will cause the connecting rods 36 to restore the bias ofthe catches 30, whereupon the latches 26 will become restored to theirlocking positions in the locking latch recesses 48, as illustrated inFigs. 7, 8, 9 and 13. In order to facilitate the entry of the latches 26into the latch recesses 48, their rear walls may be slightly inclined,as illustrated at 4'5, and the walls 46 of the latches 26 may beinclined to correspond.

Unless the plate 49 is pressed toward the front when threolook bar-alt,as before-described, the chair,

ing mechanisms described'above. Accidental unlocking is furthersafeguarded against, however,

by the fact that, as shown more particularly in Fig. 9, .at'tirnes when.the chair is locked open, the pivots '53 and 51 are alined with thelatch 26. Unless the catch 30 is released by pressure upon the springplate 49, therefore, any movement of the back member I or the rear legs2 tending to collapse the chair would result in the rear wall 45 f 'thelatch 26 binding against the cooperating engaging rear wall 46 of thelatch recess 48, thereby resisting any such tendency to collapsingmovement.

Modifications will occur to persons skilled in the art, and, all suchare considered to fall within the spirit and scope of the invention, asdefined in the appended claims.

- What is claimed is:

1.-A folding chair comprising a seat member provided 'with'front andrear guide slots, a back member pivoted at the rear of the seat memberto fold toward and away from the upper side of the seat member, rearlegs and front legs pivoted respectively at the rear and the front ofthe seat member respectively to fold as units toward and away from theunder side of the seat member, means providing for simultaneous foldingof the back member and the rear legs forward and the front legs rearwardto collapse the chair and for simultaneous folding of the back memberand the rear legs rearward and the front legs for-' ward to open thechair comprising a toggle connecting the back member and one of the rearlegs the pivot of which is slidably mounted in the rear guide slot, alever the rear end of which is pivoted to the toggle pivot and theforward end ofwhich is provided with means slidably mounted in the frontguide slot, a first link one ,end of which is pivoted to one of thefront legs, and a second link pivoted to the other end of the first linkand the'slidably mounted means, and means cooperating with the links tolock the chair open.

, ber, means providing fo simultaneous folding of the back member andthe rear legs forward and r the front legs rearward to collapse thechair and for simultaneous folding of the back member and the rear legsrearward and the front legs forward to open the chair comprising atoggle connecting the back member and one of the rear legs, the a pivotof which is slidably mounted in the rear which is provided with meansslidably mounted in the rear inclined portion of the front guide slot, afirst link one end of which is pivoted to one of the front legs, and asecond link pivoted to the other end of the first link and the slidablymounted means,- and means whereby the second link may be locked in thefront inclined portion'of the front guide slot to lock the chair open.

.3. A folding chair. comprising a seat member provided with a guide slothaving two portions at an angle to each other one of which is providedpatternin two portionaa back memberpivq ed at the rear of the seatmember to fold toward and away from the upper side of the seat member,rear legs and front legs pivoted respectively at the rear and the frontof the seat member respective- 7 1y to fold as units toward and awayfrom the under side of the seat member, and means providing forsimultaneous folding of the back memher and the rear legs forward andthe front legs rearward to collapse the chair and for simultaneousfolding of the back member and the rear legs rearward and the front legsforward to open the chair comprising means connecting the back' memberand one of the rear legs for simultaneous movement including a lever oneend of which is provided with a first pivot slidably mounted in theguide slot, a first link one end of which is pivoted to one of the frontlegs and the other end of which is provided with a second pivot slidablymounted in the guide slot, and a second link connecting the pivots. thedistance between the pivots being substantially equal to the length ofthe-- said. one portion of the guide slot in order that the first pivotmay engage in the locking recess when the second pivot engages the otherend of the said one portion of the guide slot, thereby to lock the chairopen, and the pivots being slidable out of the said one portion of thelocking recess and into the other portion of the locking recess duringthe collapse of the chair.

4. A folding chair comprising a seat member provided with a guide slothaving two portions at an angle to each other one of which is providedwith a locking recess at its end near the junction between the twoportions, a back member pivoted at the rear .of the seat member to foldtoward and away from the upper side of the seat member, and,

the front legs forward to open the chair compris ing a toggle connectingthe back member and one I of the rear legs the pivot of which isslidably mounted in the rear guide slot, a lever the rear end of whichis pivoted to the toggle pivot and the front end of which is providedwith a first pivot slidably mounted in the front guide slot, a firstlink one end of which ispivoted to one of the front legs and the otherend of which is provided with a second pivot slidably mounted in theguide slot, and a second link connecting the pivots, the distancebetween the pivots being substantially equal to the length of the saidone portion of the 7 guide slot in order that the first pivot may engagein the locking recess when the second pivot engages the 'otherend of thesaid one portion of the guide slot, thereby to lock the chair open, andthe pivots being slidable out of the said one portion of the lockingrecess and into the other portion of the locking recess duringthecollapse of the chair.

5. A folding chair comprising a seat member of substantially trapezoidalshape wider at the front than the rear and provided along itsnonparallel sides with side bars inclining toward each other from thefront toward the rear, a' back member pivoted at the rear of the seatmember to fold towardand away from the upper side of the seat memberabout an axis substantially parallel to the parallel sides of thetrapezoid,

rear legs. and front legs pivoted respectively'at the rear and the frontof the seat member respectively to fold as units toward and away fromthe under side of the seat member about axes substantially parallel tothe parallel sides of the trapezoid, a guide member fixed between theside bars to the under side of the seat member provided in a planesubstantially at right angles to the parallel sides of the trapezoidwith a guide slot having two portions at an angle to each other one ofwhich is provided with a locking recess at its end near the junctionbetween the two portions, and means providing for simultaneous foldingof the back member and the rear legs forward and the front legs rearwardto collapse the chair and for simultaneous folding of the back memberand the rear legs rearward and the front legs forward to open the chaircomprising a member guided by the guide member to move in a planebetween the side bars below the under side if the seat member providedwith a first pivot slidably mounted in the guide slot, a first linkdisposed between one of the side bars and the guide member one end ofwhich is pivoted to one of the front legs and the other end of which isprovided with a second pivot slidably mounted in the guide slot, and asecond link connecting the pivots, the distance between the pivots beingsubstantially equal to the length of the said one portion of the guideslot in order that the first pivot may engage in the locking recess whenthe second pivot engages the other end of the said one portion of theguide slot, thereby to lock the chair open, and the pivots beingslidable out of the said one portion of the locking recess and into theother portion of the locking recess during the collapse of the chair.

6. A folding chair comprising a seat member of substantially trapezoidalshape wider at the front than the rear and provided along itsnonparallel sides with side bars inclining toward each other from thefront toward the rear, a back member pivoted at the rear of the seatmember to fold toward and away from the upper side of the seat memberabout an axis substantially parallel to the parallel sides of thetrapezoid, rear legs and front legs pivoted respectively at the rear andthe front of the seat member respectively to fold as units toward andaway from the under side of the seat member about axes substantiallyparallel to the parallel sides of the trapezoid, two guide membersrespectively provided with front and rear guide slots fixed between theside bars to the under side of the seat member in planes substantiallyat right angles to the parallel sides of the trapezoid, the front guideslot having two portions at an angle to each other one of which isprovided with a looking recess at its end near the junction between thetwo portions, and means providing for simultaneous folding of the backmember and the rear legs forward and the front legs rearward to collapsethe chair and for simultaneous folding of the back member and the rearlegs rearward and the front legs forward to open the chair comprising atoggle connecting the back member and one of the rear legs the pivot ofwhich is mounted in the rear guide slot, a lever the rear end of whichis connected to the toggle pivot and the front end of which is providedwith a first pivot slidably mounted in the front guide slot, a firstlink disposed between one of the side bars and one of the guide membersone end of which is pivoted to one of the front legs and the other end.of which is provided with a second pivot slidably mounted in the frontguide slot, and a second link connecting the pivots, the distancebetween the pivots being substantially equal to the length of the saidone portion of the guide slot in order that the first pivot may engagein the locking recess when the second pivot engages the other end of thesaid one portion of the guide slot, thereby to lock the chair open, andthe pivots being slidable out of the said one portion of the lockingrecess and into the other portion of the locking recess during thecollapse of the chair. '7. A device for locking two relatively movablemembers again t relative movement, one of the members being providedwith a guide slot having two portions at an angle to each on other oneof which is provided with a locking recess at its end near the junctionbetween the two portions, a lever mounted upon one of the membersprovided with a first pivot pin mounted in the guide slot, a first linkone end of which is pivoted to the other member and the other end ofwhich is provided with a second pivot slidably mounted in the guideslot, and a second link connecting the pivots, the distance between thepivots being substantially equal to the length of the said one portionof the guide slot in order that the first pivot may engage in thelocking recess when the second pivot engages the other end of the saidone portion of the guide slot.

BERNARD THAL.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 938,315 Gundelach Oct. 26, 19091,922,305 Kovats Aug. 15, 1933 1,981,387 Kovats Nov. 20, 1934 2,247,799Boardman July 1, 1941

